My brother got me the Ultimate Ears SuperFi 5vi from Amazon and shipped to Singapore via Borderlinx as Amazon do not ship certain items directly to Singapore. It cost US$64.99 (S$86) after discount, original price is US$169.99 (S$225) and Singapore RRP is S$299. My brother bought 3 and shipping charges for all 3 Ultimate Ears SuperFi 5vi is US$25.34 (S$33.55).
I kinda like the wire of the UE SuperFi 5vi as it does not get entangle easily as compared to Klipsch Image S4i. There are more earbuds included in the package (including foam ones).
The sound quality seems clearer (especially vocals) than the Klipsch Image S4i but bass wise I think it is slightly weaker than the Klipsch Image S4i. The foam earbuds are quite good but the rubber earbuds are not as comfortable as the Klipsch Image S4i.
I want to add that the remote on Klipsch Image S4i (3 buttons) wins the UE SuperFi 5vi (1 button) hands down. Even the build quality of the button is better on the Klipsch Image S4i.
I kinda like the hard carrying case that comes with the UE SuperFi 5vi.